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lora16 [44]
4 years ago
6

Which is a derived unit? A Meter B Second C Kilogram D Newton

Physics
1 answer:
statuscvo [17]4 years ago
8 0
The answer is Newton because it can be derived from the other units.
1 Newton = 1 kg⋅m⋅s<span>−2</span>
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a blackbody is at temperature of 500°C . What would be its temperature in Kelvin for it to radiate twice as much energy per seco
Firdavs [7]

Answer:

773.15K

Explanation:

Temperature is measured in different units, however, the standard or absolute temperature unit is Kelvin (K).

To convert the temperature of a black body, which is 500°C to Kelvin, we use;

T(K) = T(°C) + 273.15

T(K) = 500°C + 273.15

T(K) = 773.15K

Hence, the temperature of the blackbody at 500°C will be 773.15 K for it to radiate twice as much energy per second.

3 0
3 years ago
I will mark you as brainliest. if you answer my question
Shalnov [3]

First, let's list everything we have...

a = 1.83 m/s^2

F = 1870 N (converted from kN to N)

vi = 0 m/s (it says started from rest, therefore velocity starts at 0)

t = 16 s

1). "Force acting on the car" is a bit ambiguous because there are many forces. But I'm going to assume that they are looking for just a basic implementation of force equation:

F=ma

where:

F = force

m = mass

a = acceleration

2). I recommend memorizing your equations of motion, because once you know them this part is also just as easy:

v_f=v_i+at

where:

vf = final velocity

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t = time

5 0
3 years ago
Calculate the momentum of a 2500kg car with a velocity of 20 m/s​
Sedaia [141]

Answer:

50000 kg.m/s

Explanation:

p = mv

p = 2500 × 20

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6 0
4 years ago
What is the magnetic field strength required to make a proton with a speed of 5.0 x 10^(5) m/s follow a circular path of radius
Nuetrik [128]

Answer:

Magnetic field strength required for this is 0.25 T

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v = 5 \times 10^5 m/s

now we have

B = \frac{1.6 \times 10^{-27} (5 \times 10^5)}{(1.6 \times 10^{-19})(0.02)}

so we have

B = 0.25 T

8 0
4 years ago
Why is electric magnet a temporary magnet
PtichkaEL [24]
The electric magnet (Electromagnetic) is temporary because you can turn it on and off.  When it's power source is gone, the magnet becomes useless.  Usually it's power source is a battery, but it could be solar with a switch.  Hope this helps.  Please give me brainliest is this helps you.
6 0
3 years ago
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